Developing and deploying non- and low-sweet sweetpotato cultivars for expanding markets

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cg.authorship.typesCGIAR single centreen_US
cg.contributor.affiliationInternational Potato Centeren_US
cg.contributor.affiliationCouncil for Scientific and Industrial Research, Ghanaen_US
cg.contributor.crpRoots, Tubers and Bananasen_US
cg.coverage.countryGhanaen_US
cg.coverage.iso3166-alpha2GHen_US
cg.coverage.regionAfricaen_US
cg.coverage.regionWestern Africaen_US
cg.creator.identifierTawanda Muzhingi: 0000-0002-2432-2165en_US
cg.creator.identifierJan Low: 0000-0001-8170-6045en_US
cg.creator.identifierEdward Carey: 0000-0003-1007-2529en_US
cg.creator.identifierPutri Abidin: 0000-0002-8236-1437en_US
cg.creator.identifierMaria David: 0000-0002-8190-2836en_US
cg.howPublishedFormally Publisheden_US
cg.identifier.doihttps://doi.org/10.17660/actahortic.2019.1251.26en_US
cg.issn0567-7572en_US
cg.issue1251en_US
cg.journalActa Horticulturaeen_US
cg.reviewStatusPeer Reviewen_US
cg.subject.cipBREEDINGen_US
cg.subject.cipGENETICS, GENOMICS AND CROP IMPROVEMENT SCIENCES GGCIen_US
cg.subject.cipSWEETPOTATOESen_US
cg.subject.cipSWEETPOTATO AGRI-FOOD SYSTEMSen_US
cg.volume1251en_US
dc.contributor.authorCarey, E.E.en_US
dc.contributor.authorSwanckaert, J.en_US
dc.contributor.authorDery, E.en_US
dc.contributor.authorAkansake, D.en_US
dc.contributor.authorSaaka, J.en_US
dc.contributor.authorAbidin, P.E.en_US
dc.contributor.authorAdofo, K.en_US
dc.contributor.authorBaafi, E.en_US
dc.contributor.authorMuzhingi, T.en_US
dc.contributor.authorDavid, M.en_US
dc.contributor.authorLow, Jan W.en_US
dc.contributor.authorGrüneberg, W.J.en_US
dc.date.accessioned2019-11-28T15:37:29Zen_US
dc.date.available2019-11-28T15:37:29Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/105928en_US
dc.titleDeveloping and deploying non- and low-sweet sweetpotato cultivars for expanding marketsen_US
dcterms.abstractA major objective of breeding at the Sweetpotato Support Platform for West Africa in Ghana, is the development of non-sweet cultivars suitable for use as staple foods, or in fried and other processed products. This priority was set during stakeholder consultations when establishing the program, and is based on the opinion that sweetness constrains the potential for greater uptake and enhanced value-addition of sweetpotato in West Africa. Similar efforts are underway at the International Potato Center’s headquarters in Lima, Peru. Moreover, studies indicate that urban consumers in many countries are increasingly health conscious and are seeking out products with low sugar contents. Initial breeding efforts in Ghana focused on adaptation to the lowland tropical West African environments where sweetpotato virus disease pressure is high and rains can be uncertain. Populations include a range of flesh colors, including β-carotene-rich orange-fleshed, anthocyanin-rich purple-fleshed, and yellow- and white-fleshed genotypes, with generally high dry matter content (>30%). Consumer sensory panels conducted at the village level consistently rate the majority of advanced selections highly with respect to texture, taste, aroma and appearance, though these contain varying levels of sugars and perceived sweetness. Recent and current efforts focus on better characterizing non- and low-sweet selections, and developing strategies for their dissemination, particularly through urban market segments. Sugar content in cooked or processed sweetpotato is influenced by various factors, including the sugar content prior to cooking, the method of cooking, and the levels of amylase activity during cooking, which can significantly increase maltose levels. Storage interval can significantly influence sugar content and amylase activity. Elite, non-sweet genotypes with low or null β-amylase activity are present among released cultivars and advanced selections in Ghana, and have excellent quality both in steamed and fried forms. Marketing research efforts build on previous successful experiences promoting and marketing the orange-fleshed sweetpotato, and include branding these new quality types with a distinct name.en_US
dcterms.accessRightsLimited Accessen_US
dcterms.audienceScientistsen_US
dcterms.audienceCGIARen_US
dcterms.bibliographicCitationCarey, E.; Swanckaert, J.; Dery, E.; Akansake, D.; Saaka, J.; Abidin, P.; Adofo, K.; Baafi, E.; Acheremu, K.; Adu-Kwarteng, E.; Muzhingi, T.; David, M.; Low, J.W.; Gruneberg, W. 2019. Developing and deploying non- and low-sweet sweetpotato cultivars for expanding markets. XXX International Horticultural Congress, IHC2018. Istambul (Turkey). 12-16 August 2018. International Society for Horticultural Science (ISHS). Acta Horticulturae. ISSN 0567-7572. no.1251. pp. 181-188.en_US
dcterms.extent181-188en_US
dcterms.issued2019-09en_US
dcterms.languageenen_US
dcterms.licenseCopyrighted; all rights reserveden_US
dcterms.publisherInternational Society for Horticultural Scienceen_US
dcterms.subjectsweet potatoesen_US
dcterms.subjectbreedingen_US
dcterms.subjectmarketsen_US
dcterms.typeConference Paperen_US

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